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Finding the Fourth Proportional to 226,901.92, 340,403.64 and 69,142.72

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Solution

The fourth proportional to 226,901.92, 340,403.64 and 69,142.72 is: 103,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,901.92 : 340,403.64 = 69,142.72 : x
  2. Step 2: Convert to fraction form
    226,901.92/340,403.64 = 69,142.72/x
  3. Step 3: Cross multiply
    226,901.92x = 340,403.64 × 69,142.72
  4. Step 4: Simplify right side
    226,901.92x = 23,536,433,567.50
  5. Step 5: Solve for x
    x = 23,536,433,567.50/226,901.92
  6. Step 6: Final answer
    x = 103,729.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.